home *** CD-ROM | disk | FTP | other *** search
Text File | 1995-07-21 | 2.2 KB | 64 lines | [TEXT/ALFA] |
- This is taken from the MPEG FAQ WWW site.
- I have adopted the suggestions below. I would urge you all to put
- pressure on content providers and the various MPEG audio app authors to
- follow these suggestions.
-
-
- There are two additional extensions not listed below that I know of:
- .m15 MPEG-1 IPB videostream at 15fps
- .m75 MPEG-1 IPB videostream at 7.5fps
-
-
- What's the problem with all these file extensions for MPEG-files ?
- ===================================================================
-
- Hm, nobody standarized the file extensions yet, they are just common use.
- the first MPEG-users (Xing) just used .mpg for a file extension, but
- they had their special (non MPEG-standard) format. Then they "invented"
- .mp2 for audio only files (well .mp2 looks more like MPEG-2, does it ?
- Some had file-extension they wanted, some ignored MS-DOS file systems ...
-
-
- The following extensions are there:
-
- .mpg could be everything ;o) usally only Xing-format (only I-frame)
- .mps MPEG-1 IPB Systemstream (video and audio)
- .m1v MPEG-1 IPB only video or systemstream
- .mpv MPEG-1 IPB only video (sometime even .vmp)
-
- .mp2 MPEG-1 only audio (mostly layer 1 or 2)
- .mpa MPEG-1 only audio (mostly layer 1 or 2) (sometimes even .amp)
- .l3 MPEG-1 only audio (layer 3)
-
- .m2v MPEG-2 IPB only video (is there some MPEG-2 audio out ?)
-
- My own idea for file extension looks like this:
-
- .m1s MPEG-1 IPB systemstream (video and audio)
- .m1v MPEG-1 IPB videostream
- .m1a MPEG-1 IPB audiostream
-
- .m2s MPEG-2 IPB systemstream (video and audio)
- .m2v MPEG-2 IPB videostream
- .m2a MPEG-2 IPB audiostream
-
- Do us all a favour and force your local sys-adm to use the following
- .mime_type extensions:
-
- audio/x-mpeg m1a mpa mp2
- video/mpeg m1v mpg
-
- and name your files according to the table above. Finally grab
- the files with the right extension (.m1v and so on), this will
- work like a vote for the right extension and can be proofed by
- the protocol of our Web-server.
-
- If you do links to these files, please use the .m1v and so on
- extensions, because the files with the old extension will be gone
- soon.
-
- --
- KeyJ Phade
- Tue Jun 27 14:38:28 MET DST 1995
-
-